1,720,963 research outputs found
Nuevas estrategias de consumo de la Economía Social y Solidaria.
Full text linkFil: Henriquez Acosta, María Dulce. Universidad Nacional de Río Negro. Centro Interdisciplinario de Estudios sobre Territorio, Economía y Sociedad (CIETES). Río Negro, Argentina.Fil: Cesetti Roscini, Mauro. Universidad Nacional de Río Negro. Río Negro, Argentina.Fil: Cesetti Roscini, Mauro. Universidad Nacional de la Patagonia San Juan Bosco. Esquel, Chubut.El escenario de aislamiento social obligatoria generado a raíz de la pandemia, reinstala lo que desde hace tiempo plantea el enfoque de soberanía alimentaria (y no sólo alimentaria): la atención de las necesidades territoriales a partir de las propias capacidades locales
Utilizzo e Valorizzazione dei Cereali Antichi
No full textIn uno scenario di aumento della crescita demografica e della domanda alimentare, il cambiamento climatico influenzerà negativamente la produzione alimentare. Una delle conseguenze più preoccupanti del cambiamento climatico sono gli stress abiotici che influenzeranno l'agricoltura. Si prevede che i raccolti diminuiranno del 17-33% nel prossimo futuro. Una possibile chiave per mitigare questo scenario è la reintroduzione delle varietà di cereali tradizionali. Lo scopo di questo progetto era di studiare la tolleranza allo stress abiotico di varietà di cereali antiche e moderne nelle fasi di germinazione e semina, al fine di valutarne il comportamento ai cambiamenti climatici e anche per sviluppare una strategia per soddisfare le future esigenze alimentari. Lo studio si è concentrato su 7 varietà antiche (Triticum aestivum L. var. Verna, T. durum Desf. var. Senatore Cappelli, "Einkorn" T. monococcum L, "Emmer" T. dicoccum L., T. durum Desf. var. Timilia, Triticum aestivum L. var.Gentil Rosso, Triticum turanicum L. Jakubz., 1947) e una cultivar moderna (T. durum Desf var. Claudio). La metodologia utilizzata è stata principalmente test di laboratorio in vitro, in particolare test di germinazione e test di crescita delle plantule, ma principalmente anche test in campo delle cultivar. Le prove di laboratorio mostrano una maggiore tolleranza allo stress rispetto alle varietà tradizionali rispetto alle varietà moderne. Tuttavia, nelle prove di produttività in campo, è stata osservata una maggiore produttività delle varietà moderne rispetto alle varietà tradizionali. L'elevata tolleranza agli abiotici osservata a Verna, Timilia, Einkorn e Turanicum suggerisce che la reintroduzione di varietà di colture tradizionali può aiutare ad affrontare le future sfide climatiche, economiche e sociali indirizzando la produzione alimentare verso agroecosistemi produttivi, stabili e resilienti riducendo al minimo gli impatti ambientali
Revisando nuestro trabajo: Reflexión sobre abordaje y prácticas en el Proyecto TESyS (Territorios de Economía Social y Solidaria) en Villa Los Coihues, San Carlos de Bariloche.
Full text linkFil: Cesetti Roscini, Mauro. Universidad Nacional de la Patagonia San Juan Bosco. Comodoro Rivadavia, Argentina.Fil: Cesetti Roscini, Mauro. Universidad Nacional de Río Negro. Río Negro, Argentina.Fil: Merlos, Melisa. Instituto Patagónico de Estudios de Humanidades y Ciencias Sociales. UNCo-CONICET. Cordoba, Argentina.Fil: Merlos, Melisa. Centro de estudio para la planificación y el desarrollo sustentable del turismo. Facultad de Turismo. Neuquén, Argentina.Fil: Otero, Adriana M. Instituto Patagónico de Estudios de Humanidades y Ciencias Sociales. UNCo-CONICET. Cordoba, Argentina.Fil: Otero, Adriana M. Centro de estudio para la planificación y el desarrollo sustentable del turismo. Facultad de Turismo. Neuquén, Argentina.Fil: Conti, Santiago. Universidad Nacional de Río Negro. Instituto de Investigaciones en Diversidad Cultural y Procesos del Cambio. Río Negro, Argentina.Fil: Conti, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina. Buenos Aires, Argentina.TESyS (Territorios de Economía Social y Solidaria) es un proyecto que se desarrolla en el marco del programa de Cooperativismo y Economía Social en la Universidad financiado por Secretaría de Políticas Universitarias.
En el mismo se congregaron docentes, investigadores, becarios y estudiantes de diferentes disciplinas de la Universidad Nacional del Comahue (Neuquén), la Universidad Nacional de Río Negro (Bariloche) y a la Universidad Nacional de la Patagonia San Juan Bosco (Esquel) vinculados al Desarrollo Territorial, iniciado en septiembre de 2017; que tienen como objetivo “constituir una red de trabajo colaborativo interuniversitario e interinstitucional en la norpatagonia andina que facilite el intercambio de saberes, prácticas y producciones, como forma de innovación social vinculada a la Economía Social y Solidaria para el Desarrollo Local”.
Para ello se identificaron y propusieron dos casos para abordar durante el proyecto, caracterizados por contar con un fuerte entramado de organizaciones de la economía social y solidaria: Villa Los Coihues (San Carlos de Bariloche) y la comunidad de Alto Rio Percy (Esquel).
Aquí se presentan el abordaje y la prácticas definidos para el trabajo en el territorio y con las organizaciones de Villa Los Coihues, tanto hacia adentro del equipo involucrado en el proyecto como hacia afuera (las organizaciones del territorio participantes, a fin de iniciar en el marco del presente encuentro, una revisión y reflexión abiertas sobre nuestra praxis investigativa y la co-construcción de conocimiento en el territorio. Justamente, el “adentro y el afuera”, es decir, la vinculación entre equipo y actores, será uno de los principales ejes de discusión que queremos proponer para las jornada
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Focal vibration of quadriceps muscle enhances leg power and decreases knee joint laxity in female volleyball players
No full textABSTRACT
Aim:
This double-blind randomized controlled study aims at determining the effect of repeated muscle vibration (rMV) on explosive and reactive leg power and on knee laxity of female volleyball players.
Methods
Eighteen voluntary volleyball athletes, belonging to the same senior regional level team (age = 22.7 ± 3 years, height = 1, 803 ± 5 m, mass = 64 ± 4 Kg) were assigned to 3 groups (N= 6) for vibration on contracted quadriceps (VC), vibration on relaxed muscle (VR), and sham vibration (NV) respectively. Intervention consisted in 3 rMV sessions performed in 3 consecutive days. In each session, 100Hz, 300–500 μm amplitude vibratory stimuli were bilaterally delivered to the quadriceps in three consecutive 10-minutes applications. Explosive and reactive leg power and knee joint laxity were evaluated 1 day before, and 1, 30, and 240 days after intervention.
Results
In VC group, explosive and reactive leg power increased respectively by ~16% and ~9% at 1 day, by ~19% and ~11% at 30 days and by ~26% and ~13% at 240 days, concomitantly knee laxity decreased by ~6%, ~15% and ~18% at the same times. These changes were significantly larger than in the other groups, in which leg power increment and knee joint laxity reduction remained close to ~3%, ~5% and ~10% at 1, 30 and 240 days respectively.
Conclusions
Combined bilateral voluntary contraction and rMV of the quadriceps muscles is a short-lasting, non-invasive technique that can significantly and persistently improve muscle performance and knee laxity in volleyball women players
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